Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko

M. Fulle; S. L. Ivanovski; I. Bertini; P. Gutierrez; L. Lara; H. Sierks; V. Zakharov; V. Della Corte; A. Rotundi; C. Barbieri; P. L. Lamy; R. Rodrigo; D. Koschny; H. Rickman; H. U. Keller; J. Agarwal; M. F. A'Hearn; M. A. Barucci; J. L. Bertaux; D. Bodewits; G. Cremonese; V. Da Deppo; B. Davidsson; S. Debei; M. De Cecco; S. Fornasier; O. Groussin; C. Guttler; S. F. Hviid; W. Ip; L. Jorda; J. Knollenberg; R. Kramm; E. Kuhrt; M. Kuppers; M. Lazzarin; J. J. Lopez-Moreno; F. Marzari; H. Michalik; G. Naletto; N. Oklay; L. Sabau; N. Thomas; C. Tubiana; J. B. Vincent; K. P. Wenzel

doi:10.1051/0004-6361/201526158

Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko

M. Fulle, S. L. Ivanovski, I. Bertini, P. Gutierrez, L. Lara, H. Sierks, V. Zakharov, V. Della Corte, A. Rotundi, C. Barbieri, P. L. Lamy, R. Rodrigo, D. Koschny, H. Rickman, H. U. Keller, J. Agarwal, M. F. A'Hearn, M. A. Barucci, J. L. Bertaux, D. BodewitsG. Cremonese, V. Da Deppo, B. Davidsson, S. Debei, M. De Cecco, S. Fornasier, O. Groussin, C. Guttler, S. F. Hviid, W. Ip, L. Jorda, J. Knollenberg, R. Kramm, E. Kuhrt, M. Kuppers, M. Lazzarin, J. J. Lopez-Moreno, F. Marzari, H. Michalik, G. Naletto, N. Oklay, L. Sabau, N. Thomas, C. Tubiana, J. B. Vincent, K. P. Wenzel

Graduate Institute of Astronomy

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

During September and October 2014, the OSIRIS cameras onboard the ESA Rosetta mission detected millions of single particles. Many of these dust particlesappear as long tracks (due to both the dust proper motion and the spacecraft motion during the exposure time) with a clear brightness periodicity. We interpret the observed periodic features as a rotational and translational motion of aspherical dust grains. Methods. By counting the peaks of each track, we obtained statistics of a rotation frequency. We compared these results with the rotational frequency predicted by a model of aspherical dust grain dynamics in a model gas flow. By testing many possible sets of physical conditions and grain characteristics, we constrained the rotational properties of dust grains. Results. We analyzed on the motion of rotating aspherical dust grains with different cross sections in flow conditions corresponding to the coma of 67P/Churyumov-Gerasimenko qualitatively and quantitatively. Based on the OSIRIS observations, we constrain the possible physical parameters of the grains.

Original language	English
Article number	A14
Journal	Astronomy and Astrophysics
Volume	583
DOIs	https://doi.org/10.1051/0004-6361/201526158
State	Published - 1 Nov 2015

Keywords

Comets: general
Comets: individual: 67P/Churyumov-Gerasimenko
Methods: numerical
Space vehicles

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10.1051/0004-6361/201526158

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Fulle, M., Ivanovski, S. L., Bertini, I., Gutierrez, P., Lara, L., Sierks, H., Zakharov, V., Della Corte, V., Rotundi, A., Barbieri, C., Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., Agarwal, J., A'Hearn, M. F., Barucci, M. A., Bertaux, J. L., ... Wenzel, K. P. (2015). Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko. Astronomy and Astrophysics, 583, [A14]. https://doi.org/10.1051/0004-6361/201526158

@article{44b982d69dde46f4abb1d79fb9a99394,

title = "Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko",

abstract = "During September and October 2014, the OSIRIS cameras onboard the ESA Rosetta mission detected millions of single particles. Many of these dust particlesappear as long tracks (due to both the dust proper motion and the spacecraft motion during the exposure time) with a clear brightness periodicity. We interpret the observed periodic features as a rotational and translational motion of aspherical dust grains. Methods. By counting the peaks of each track, we obtained statistics of a rotation frequency. We compared these results with the rotational frequency predicted by a model of aspherical dust grain dynamics in a model gas flow. By testing many possible sets of physical conditions and grain characteristics, we constrained the rotational properties of dust grains. Results. We analyzed on the motion of rotating aspherical dust grains with different cross sections in flow conditions corresponding to the coma of 67P/Churyumov-Gerasimenko qualitatively and quantitatively. Based on the OSIRIS observations, we constrain the possible physical parameters of the grains.",

keywords = "Comets: general, Comets: individual: 67P/Churyumov-Gerasimenko, Methods: numerical, Space vehicles",

author = "M. Fulle and Ivanovski, {S. L.} and I. Bertini and P. Gutierrez and L. Lara and H. Sierks and V. Zakharov and {Della Corte}, V. and A. Rotundi and C. Barbieri and Lamy, {P. L.} and R. Rodrigo and D. Koschny and H. Rickman and Keller, {H. U.} and J. Agarwal and A'Hearn, {M. F.} and Barucci, {M. A.} and Bertaux, {J. L.} and D. Bodewits and G. Cremonese and {Da Deppo}, V. and B. Davidsson and S. Debei and {De Cecco}, M. and S. Fornasier and O. Groussin and C. Guttler and Hviid, {S. F.} and W. Ip and L. Jorda and J. Knollenberg and R. Kramm and E. Kuhrt and M. Kuppers and M. Lazzarin and Lopez-Moreno, {J. J.} and F. Marzari and H. Michalik and G. Naletto and N. Oklay and L. Sabau and N. Thomas and C. Tubiana and Vincent, {J. B.} and Wenzel, {K. P.}",

note = "Publisher Copyright: {\textcopyright} 2015 ESO.",

year = "2015",

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doi = "10.1051/0004-6361/201526158",

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Fulle, M, Ivanovski, SL, Bertini, I, Gutierrez, P, Lara, L, Sierks, H, Zakharov, V, Della Corte, V, Rotundi, A, Barbieri, C, Lamy, PL, Rodrigo, R, Koschny, D, Rickman, H, Keller, HU, Agarwal, J, A'Hearn, MF, Barucci, MA, Bertaux, JL, Bodewits, D, Cremonese, G, Da Deppo, V, Davidsson, B, Debei, S, De Cecco, M, Fornasier, S, Groussin, O, Guttler, C, Hviid, SF, Ip, W, Jorda, L, Knollenberg, J, Kramm, R, Kuhrt, E, Kuppers, M, Lazzarin, M, Lopez-Moreno, JJ, Marzari, F, Michalik, H, Naletto, G, Oklay, N, Sabau, L, Thomas, N, Tubiana, C, Vincent, JB & Wenzel, KP 2015, 'Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko', Astronomy and Astrophysics, vol. 583, A14. https://doi.org/10.1051/0004-6361/201526158

TY - JOUR

T1 - Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko

AU - Fulle, M.

AU - Ivanovski, S. L.

AU - Bertini, I.

AU - Gutierrez, P.

AU - Lara, L.

AU - Sierks, H.

AU - Zakharov, V.

AU - Della Corte, V.

AU - Rotundi, A.

AU - Barbieri, C.

AU - Lamy, P. L.

AU - Rodrigo, R.

AU - Koschny, D.

AU - Rickman, H.

AU - Keller, H. U.

AU - Agarwal, J.

AU - A'Hearn, M. F.

AU - Barucci, M. A.

AU - Bertaux, J. L.

AU - Bodewits, D.

AU - Cremonese, G.

AU - Da Deppo, V.

AU - Davidsson, B.

AU - Debei, S.

AU - De Cecco, M.

AU - Fornasier, S.

AU - Groussin, O.

AU - Guttler, C.

AU - Hviid, S. F.

AU - Ip, W.

AU - Jorda, L.

AU - Knollenberg, J.

AU - Kramm, R.

AU - Kuhrt, E.

AU - Kuppers, M.

AU - Lazzarin, M.

AU - Lopez-Moreno, J. J.

AU - Marzari, F.

AU - Michalik, H.

AU - Naletto, G.

AU - Oklay, N.

AU - Sabau, L.

AU - Thomas, N.

AU - Tubiana, C.

AU - Vincent, J. B.

AU - Wenzel, K. P.

PY - 2015/11/1

Y1 - 2015/11/1

N2 - During September and October 2014, the OSIRIS cameras onboard the ESA Rosetta mission detected millions of single particles. Many of these dust particlesappear as long tracks (due to both the dust proper motion and the spacecraft motion during the exposure time) with a clear brightness periodicity. We interpret the observed periodic features as a rotational and translational motion of aspherical dust grains. Methods. By counting the peaks of each track, we obtained statistics of a rotation frequency. We compared these results with the rotational frequency predicted by a model of aspherical dust grain dynamics in a model gas flow. By testing many possible sets of physical conditions and grain characteristics, we constrained the rotational properties of dust grains. Results. We analyzed on the motion of rotating aspherical dust grains with different cross sections in flow conditions corresponding to the coma of 67P/Churyumov-Gerasimenko qualitatively and quantitatively. Based on the OSIRIS observations, we constrain the possible physical parameters of the grains.

AB - During September and October 2014, the OSIRIS cameras onboard the ESA Rosetta mission detected millions of single particles. Many of these dust particlesappear as long tracks (due to both the dust proper motion and the spacecraft motion during the exposure time) with a clear brightness periodicity. We interpret the observed periodic features as a rotational and translational motion of aspherical dust grains. Methods. By counting the peaks of each track, we obtained statistics of a rotation frequency. We compared these results with the rotational frequency predicted by a model of aspherical dust grain dynamics in a model gas flow. By testing many possible sets of physical conditions and grain characteristics, we constrained the rotational properties of dust grains. Results. We analyzed on the motion of rotating aspherical dust grains with different cross sections in flow conditions corresponding to the coma of 67P/Churyumov-Gerasimenko qualitatively and quantitatively. Based on the OSIRIS observations, we constrain the possible physical parameters of the grains.

KW - Comets: general

KW - Comets: individual: 67P/Churyumov-Gerasimenko

KW - Methods: numerical

KW - Space vehicles

UR - http://www.scopus.com/inward/record.url?scp=84946562398&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201526158

DO - 10.1051/0004-6361/201526158

M3 - 期刊論文

AN - SCOPUS:84946562398

SN - 0004-6361

VL - 583

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A14

ER -

Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko

Abstract

Keywords

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